Polypropylene Lab Fume Hood with Built in Scrubber is A Best Way for Acid Alkali

Waste Gas Treatment of Fume Hood

Polypropylene fume hood with built in water scrubber  is a two safety features into one, providing double protection Specifcitions :

Polypropylene fume hood with water scrubber system treating from Acid alkali Exhaust wate Gas of fume hood : A fan system effectively removes harmful gases, vapors, dust, and aerosols generated during operation, preventing their spread within the laboratory.

Physical Isolation: The front window (viewing window) provides a physical barrier for operators, preventing direct injury from splashes, explosions, or flying debris that may result from chemical reactions.

Operating Platform: Provides a dedicated, corrosion-resistant space for experiments involving chemicals.

Immediate Rinsing: The spray system can be activated immediately in the event of accidental splashing of corrosive, irritating, or toxic chemicals (such as strong acids or alkalis) onto the operator's body, face, or eyes.

Dilution and Removal: A large, continuous flow of clean water rapidly dilutes and washes away chemicals from skin or eyes, minimizing chemical damage and buying valuable time for subsequent medical treatment.

Compliant with safety standards: Its design must meet safety standards (such as ANSI Z358.1) to ensure that emergency equipment is "reachable within 10 seconds" in the event of an accident, and this design directly reduces rescue time to "within 1 second."

The choice of PP material is closely related to the "water spray" function, making it particularly suitable for handling these types of chemicals:

Polypropylene fume hood with built in water scrubber  is Excellent corrosion resistance: PP plastic has excellent corrosion resistance to most inorganic acids, alkalis, and salt solutions (such as hydrochloric acid, sulfuric acid, nitric acid, sodium hydroxide, etc.). This is precisely the type of chemicals that easily cause splashes and require emergency rinsing.

Seamless welding, no leakage: High-quality PP fume hoods are typically welded using homogeneous welding rods, without seams or gaps, ensuring that corrosive liquids will not leak into the cabinet and cause structural damage or contamination.

Non-conductive, high safety: As an insulating material, it is safer in experiments involving electrical equipment.

Light weight and high strength: Compared to steel fume hoods, it is lighter, but its structural strength is sufficient for daily use.

In short, the PP material ensures that the fume hood itself will not be corroded or damaged when exposed to chemicals requiring emergency rinsing with water, guaranteeing the long-term durability of the equipment.

Applicable Scenarios :
This water-spraying PP fume hood is ideal for the following laboratory environments:

High-intensity inorganic chemical experiments: Laboratories using large amounts of concentrated acids and alkalis, such as chemistry teaching laboratories, quality control centers, and wastewater treatment laboratories.

Wet digestion/sample pretreatment: Experiments involving the heating and digestion of samples with strong acids (such as nitric acid and sulfuric acid), with a high risk of splashing.

Electroplating solution analysis and testing.

Any location where safety is the highest priority and primarily handles corrosive chemicals.

Important Precautions :
This is not a replacement for all safety equipment: It is primarily intended for handling splashes of corrosive chemicals. For fires, fire extinguishers are still required; for large leaks of toxic gases, immediate evacuation is still necessary.

Water Source and Drainage:

Water Supply: A continuous and stable clean water source (usually tap water) must be connected, with water pressure and flow rate meeting standards (e.g., spray head flow rate ≥ 75.7 liters/minute).

Drainage: The fume hood must be equipped with a drip tray and drain outlet to collect and discharge the large amounts of wastewater generated during rinsing. This wastewater may need to be directed to a neutralization tank or a dedicated wastewater treatment system and cannot be directly discharged into ordinary sewers.

The PP fume hood with water shower (emergency spray) is a safety workstation tailored for high-risk corrosive chemical environments. Utilizing PP material to resist daily corrosion and providing immediate emergency rinsing capabilities through an integrated spray system, it achieves seamless integration of "routine control" and "emergency rescue," serving as a solid line of defense for the safety of laboratory personnel.

Polypropylene Lab Fume Hood with Built in Scrubber Design Soluitons:

Technical Parameters :

And Working Priciple :

Polypropylene Lab Fume Hood Functions:

Cabinet and door: made of 8mm high quality white polypropylene(PP)sheet with excellent feature on chemical resistance.
Handle and Hinge: made of high quality one-time forming PP material.

The sash is 5mm thick, tough-end glass panel, sliding up & down by belt & special counter-balance safety
device , all edges of sash is aerodynamic.
The worktop is made up of solid 15mm PP worktop.
With storage cabinet.
Face velocity is 0.5 m3/sec. minimum, when sash is opened at safe height.
Designed and manufactured as per ASHRAE110-2016.
Having the following service : 1 flourescent light built into 1 separate space with .
1 pcs remotecold water valve and outlet.
1 pcs remote gas valve and outlet with safety function.
4 pcs10 Amp, 220V elect universal or UK/EU socket.
1 pcs LCD monitor which controls power, light, etc, or specified intelligent controller showing face velocity
and alarming having unproper airflow in working chamber.
With a small centrifugation fan and flexible pipe.

Location: our polypropylene fume hood is suitable for harsh working environment with higher requirement
on chemical resistance, or clean room etc requiring fume cupboards without metal exposed.

 

Polypropylene Lab Fume Hood with Built in Scrubber Special Functions:

This acid-base waste acid fume scrubber is made of PP material, and there are no metal components inside
the system. Therefore, the entire system has extremely high resistance to strong acidity and alkalinity.

Equipment composition: The equipment adopts a vertical cylindrical design and is equipped with a gas-liquid
reaction chamber, a reverse packing absorption system, a spray system, a dehazing device system, a liquid
circulation supply system, and an automatic dosing system (optional). It is also equipped with a supply system
Water tank, water supply pump system, peripheral windows, and air inlet and outlet ports.

The filtering filling layer adopts PP annular packing. The porosity of the packing material is above 0.85, which
not only provides a large contact area between the gas-liquid phase on the packing medium, but also ensures its
good gas passing performance.

The defogging layer uses high-efficiency defogging plastic mesh as the defogging agent, and its water vapor
removal rate can reach over 90%.

The circulating water pipe and the drainage pipe are both independent operating systems. The circulating water
pipe is made of PP material, and the drainage pipe is made of PVC material. The drainage pipe is designed as an
integral part of the anti overflow outlet; The nozzle of the water spraying system is a high-pressure spiral spray nozzle,
which is not easy to block, has a large spraying angle, and has uniform distribution of droplets.

The circulating water tank and spray tower adopt an integrated design, with water inlet, overflow prevention outlet,
and drainage outlet, and an automatic water stop device is installed at the water inlet.

 The window adopts a circular design for observing the operation and maintenance of the equipment.